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Author

Chang-Feng Xu

3 papers indexed here

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#artificial intelligence Review Sep 2026

Predict Before You Modify: Learning Improvement Dynamics for Self-Evolving Agents

Self-evolving agents improve through repeated cycles of modification and evaluation. However, existing methods receive feedback on modifications only after costly evaluations, and aggregate scores may obscure distinctions between failures that require different repairs. We introduce predictive self-evolution through an...

Zi-Xuan Xie, Chang-Feng Xu, Yu-Hua Jiang et al. · 0 citations
#natural language process... Preprint Oct 2026

Specialized Decision Models vs. General-Purpose LLMs: Benchmarking Jev Across Knowledge, Reasoning, and Multilingual Tasks

Jev is a"System One"model that returns a choice among given options instead of generating text. We study how such a specialized decision model compares with general-purpose large language models (LLMs). We evaluate Jev on 13 multiple-choice benchmarks covering knowledge, reasoning, and multilingual understanding, and c...

Xing Li, Qing-Cheng Chang, Jin-Zhong Ning et al. · 0 citations
#machine learning Preprint Sep 2026

Copper-Policy: Focus on the Representation for Robust Robot Manipulation

Copper-Policy is introduced, which learns a compact World representation with the policy rather than relying on a predefined target space and predicts future observation embeddings conditioned on task intention without reconstructing pixels through temporal joint-embedding prediction.

Ze Feng, Yi-Xu Feng, Ling-Yu Xiao et al. · 1 citation

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